CN212751921U

CN212751921U - Iron core, stator and asynchronous motor

Info

Publication number: CN212751921U
Application number: CN202022126350.6U
Authority: CN
Inventors: 陈明斌; 老嘉铭; 麦良
Original assignee: Zhongshan Jixin Machine & Electric Industry Co ltd
Current assignee: Zhongshan Jixin Machine & Electric Industry Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-03-19
Anticipated expiration: 2030-09-24

Abstract

The utility model discloses an iron core, the iron core main part, evenly be provided with a plurality of main winding groove and a plurality of start winding groove on the inner wall of iron core main part, the degree of depth of main winding groove is greater than the degree of depth of start winding groove, has first stator core tooth portion between two adjacent start winding grooves, has second stator core tooth portion between two adjacent main winding grooves, the thickness of first stator core tooth portion is greater than the thickness of second stator core tooth portion; the stator comprises a main winding, a starting winding and the iron core, wherein the main winding is embedded into the main winding slot, and the starting winding is embedded into the starting winding slot; an asynchronous motor comprising said stator; adopt the utility model provides an iron core structure can effectively reduce the excitation magnetic potential of main magnetic circuit, reduces exciting current promptly to reduce the loss, effectively improve the efficiency of motor.

Description

Iron core, stator and asynchronous motor

Technical Field

The utility model relates to a motor field, in particular to iron core, stator and asynchronous motor.

Background

In the prior art, a motor for a water pump generally adopts a self-circulation cooling method of media around an IC01, air media enter from an air inlet of a front end cover of the motor and then are discharged from an outlet below a shell through the outer space of a stator iron core by the rotation of a fan blade; the periphery of the iron core is not a full circle but a square circle component, so that the deformation phenomenon of an inner hole of the base is easily caused in the process of pressing the stator and the base in, and the assembly quality of the motor is influenced; meanwhile, the groove shape of the stator core is equal in size, and the motor designed in the way is low in efficiency because the design characteristics of a single-phase resistance starting asynchronous motor, namely large wire diameter, multiple turns, small resistance of a main phase winding, small wire diameter, small turns and large resistance of a starting winding, are not met.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an iron core, stator and asynchronous motor.

The utility model discloses a technical scheme that its technical problem was solved to an embodiment adopted is: the iron core, the iron core main part, evenly be provided with a plurality of main winding groove and a plurality of start winding groove on the inner wall of iron core main part, the degree of depth in main winding groove is greater than the degree of depth in start winding groove, has first stator core tooth portion between two adjacent start winding grooves, has second stator core tooth portion between two adjacent main winding grooves, the thickness of first stator core tooth portion is greater than the thickness of second stator core tooth portion.

Further, the cross-sectional profile of the iron core main body is set to be a perfect circle.

Further, the periphery of iron core main part is provided with the ventilation hole that a plurality of runs through along iron core main part length direction.

The stator comprises a main winding, a starting winding and the iron core, wherein the main winding is embedded into the main winding groove, and the starting winding is embedded into the starting winding groove.

An asynchronous motor comprises the stator.

The utility model has the advantages that: the stator comprises an iron core and an iron core main body, wherein a plurality of main winding slots and a plurality of starting winding slots are uniformly arranged on the inner wall of the iron core main body, the depth of each main winding slot is greater than that of each starting winding slot, a first stator iron core tooth part is arranged between every two adjacent starting winding slots, a second stator iron core tooth part is arranged between every two adjacent main winding slots, and the thickness of each first stator iron core tooth part is greater than that of each second stator iron core tooth part; the stator comprises a main winding, a starting winding and the iron core, wherein the main winding is embedded into the main winding slot, and the starting winding is embedded into the starting winding slot; an asynchronous motor comprising said stator; adopt the utility model provides an iron core structure can effectively reduce the excitation magnetic potential of main magnetic circuit, reduces exciting current promptly to reduce the loss, effectively improve the efficiency of motor.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a stator;

FIG. 2 is a schematic structural diagram of an iron core;

fig. 3 is a schematic structural diagram of an asynchronous motor.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as excluding the number, and the terms greater than, less than, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1 to 3, a plurality of main winding slots 20 and a plurality of start winding slots 30 are uniformly arranged on an inner wall of an iron core, an iron core body 10, wherein the depth of the main winding slot 20 is greater than that of the start winding slot 30, a first stator core tooth portion 40 is arranged between two adjacent start winding slots 30, a second stator core tooth portion 50 is arranged between two adjacent main winding slots 20, and the thickness of the first stator core tooth portion 40 is greater than that of the second stator core tooth portion 50.

In the utility model, the cross section outline of the iron core main body 10 on the stator is a perfect circle, so that the deformation of the inner hole of the base is not easy to cause when the perfect circle iron core main body 10 is tightly pressed into the base of the asynchronous motor; meanwhile, the periphery of the iron core main body 10 is provided with a plurality of ventilation holes 60 penetrating along the length direction of the iron core main body 10, so that the flowing of air media is met when the asynchronous motor rotates and cools.

The core body 10 is provided with a main winding slot 20 and a start winding slot 30, the depth of the main winding slot 20 is greater than that of the start winding slot 30, a first stator core tooth portion 40 is arranged between two adjacent start winding slots 30, a second stator core tooth portion 50 is arranged between two adjacent main winding slots 20, the thickness of the first stator core tooth portion 40 is greater than that of the second stator core tooth portion 50, namely the thickness a is greater than that of the thickness B in fig. 1, and the design can effectively reduce the excitation magnetic potential of the main magnetic circuit, namely the excitation current, thereby reducing loss and effectively improving the efficiency of the motor.

The cross-sectional profile of the core body 10 is set to be a perfect circle.

And the stator comprises a main winding, a starting winding and the iron core, wherein the main winding is embedded into the main winding slot 20, and the starting winding is embedded into the starting winding slot 30.

An asynchronous motor comprises the stator.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications and substitutions are included in the scope defined by the claims of the present application.

Claims

1. Iron core, its characterized in that: the iron core comprises an iron core main body (10), wherein a plurality of main winding slots (20) and a plurality of starting winding slots (30) are uniformly arranged on the inner wall of the iron core main body (10), the depth of each main winding slot (20) is larger than that of each starting winding slot (30), a first stator core tooth part (40) is arranged between every two adjacent starting winding slots (30), a second stator core tooth part (50) is arranged between every two adjacent main winding slots (20), and the thickness of each first stator core tooth part (40) is larger than that of each second stator core tooth part (50).

2. The core of claim 1, wherein: the cross section outline of the iron core main body (10) is set to be a perfect circle.

3. The core of claim 1, wherein: the periphery of iron core main part (10) is provided with a plurality of ventilation hole (60) that run through along iron core main part (10) length direction.

4. A stator, characterized in that: comprising a main winding embedded in said main winding slot (20), a start winding embedded in said start winding slot (30), and a core according to any of claims 1-3.

5. An asynchronous motor characterized by: comprising a stator according to claim 4.